As the tension of the heat treatment rose,the crimp frequency and the crimp radius of the monofilament went down,the crimp elongation rate went down,the crimp recovery rate and the crimp modulus of the monofilament and multifilament went up.

With the decreasing of the ratio of long and short axis of cross-section,the crimp curvature gets lower.

Fault tolerant real-time scheduling strategy for NC system based on rollback recovery;

Research on Rollback Recovery Fault-Tolerance Technology in High Availability Cluster;

The Research on Low-overhead Rollback Recovery Fault-Tolerance Technology;

This system uses the checkpointing and rollback recovery technique,with user lever transparent fault tolerance,process migration,and system auto reconfiguration based on an "exit and reenter" parallel environment strategy.

As an effective method of fault-tolerance,technologies of coordinated checkpoint and rollback recovery are widely used on the parallel or distributed computer systems.

Checkpointing and rollback recovery of Unix process are the underlying technique of fault tolerance for distributed system and parallel environment.

Based on experimental and theoretical analysis, a new viewpoint of which a comound curling chip is easier to break than a up curling chip or if the degree of side curling is higher than that of up curling in the compound curling it is aslo easier to break than a side curling chip has been put forth in this paper,and the conditions of producing the compound culing chip have been investigated.